Yes but one can't just ignore the federal government itself, as if this wasn't an organization. In this framing of small organizations kept small by the government the largest organization is the State. Indeed in this framing the State's job is to control other organizations. While a democratic state is different than a private organization in that it derives legitimacy from its voters, I'd be hard pressed to say that the state is sufficiently different from any other large organization. We can certainly see this now in the US in highly polarized times where the State bears opposition from half the country depending on who is in power.
I think this "anti-monopoly" framing is a bit dangerous as it smuggles a political position into a much more complicated situation. There is an overall decline in the West of small association groups. More and more of these groups happen on Discord voice chats and are divorced from the real life constraints that offer a more "grounded" character. And I think this issue has been written about much less than the "anti-monopoly" one. Even if you fervently believe that the State needs to play an aggressive role in policing private organizations, I think it's more thought-provoking to think about ways to encourage more grassroots organizing.
(1) Power and money generally lead to more power and money
(2) Government and corporate/wealthy power are a revolving door (regulatory capture, pay-to-play politics, etc).
... then someone who is skeptical of abuses of power should be wary of both government and corporate/wealthy power. But that seems like an untenable position — you can't check the one without muscling up the other.
Is there a way to maintain a small, decentralized, local-oriented government that can still check the power of corporate/wealthy/majoritarian impulses and provide a social safety net?
But if the US (same applies to other countries) became an anarchy today, then entities like Goldman Sachs and Constellis (formerly Blackwater) are going to fare much better than most. So a naive "burn it all down" anarchy doesn't seem an answer.
UPDATE: I remembered Noam Chomsky is sometimes called an anarcho-syndicalist but never looked up what meant. Turns out that is exactly the kind of "anarchism" that answers my question. (New concept to me, so not sure in what sense this might be called anarchism. No central government?)